ULTRASONIC GAUGING AIDS COPPER TUBING PRODUCER
Meet The People
Mary Jane Turchan
Mary Jane, or “MJ” as she is known around the office, is a comparative newcomer with
just 4 years at InspecTech. Mary Jane is our full-
MJ graduated in bookkeeping from the Toronto School of Business in 2000. Ever helpful, she will be happy to assist you with any questions or concerns you may have over invoicing and accounts.
We Wish All A Very Merry Christmas And A Safe And Prosperous New Year!
During 2011 InspecTech commissioned an ultrasonic eccentricity monitor for the copper tubing industry. It has been an interesting departure from our usual weld testing activities.
The manufacture of copper tube and pipe involves several steps. Base extrusions referred
to as shells that are made from heated copper billets. These rough extrusions are
For the final drawing processes the shells must meet certain concentricity standards. It is generally true that concentricity is less reliable at the leading and trailing ends of the shell, and this is where ultrasonic testing comes in.
The new Inspectech
unit clamps onto the
product and measures wall thickness and Calculates
concentricity as the
shell passes through.
When concentricity becomes acceptable, the system signals to stop and crop the unusable end from the shell. After cutting, the shell continues through the system, during which time the concentricity continues to be measured and recorded. The direct measurement of concentricity replaces the oldermethod of cutting and scrapping a fixed length from each shell, greatly enhancing productivity.
At the conclusion of the test cycle, the remaining product is known to be within limits, and it is also graded by colour marking to 3 standards of concentricity overall. If standards are not met, the entire piece is rejected. A “cut to weight” feature helps to reduce wasted material in the process.
The tendency for the shells to be soft and bendy raised some tough mechanical design
issues. The test head not only clamps onto the product, it also has “floating” suspension
with many degrees of freedom. The clamping mechanism involves a semi-
Redefining Ultrasonic Field Inspections of Welded Tubular Goods.
New UT Crab Advancements
InspecTech has manufactured customized NDT
solutions for the tube & pipe industries for over
30 years. We are always exploring new
technologies and innovative ways to meet
Recently, a portable ultrasonic “crab” inspection
system was manufactured and commissioned
for Tejas Tubular Products Inc., Casing Facility
located in Houston Texas. The crab was made
to inspect the weld-
for oilfield casings and line pipes;inspecting to
the operator walks on the tubes being inspected,
and the portable crab was required to be a
“walking” version, versus a more traditional hand-
InspecTech's UT crabs were developed from the success of our fixed system predecessors,
not from common and limited hand-
The electronic cabinet and coupling liquid tank are connected to the crab via a 100ft services umbilical. The crab also comes with audible and visual alarms to notify the operator of detected anomalies in the OD and ID locations independently.